812 results
812 results for: Sharks
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- Life
Hormones give lantern sharks the glow
In a first, a study shows that bioluminescence can be controlled by slow-acting hormones, not rapid-fire nerve cells.
- Life
Poached hammerhead fins traced to endangered populations
Mapping populations with DNA comparisons offers possible tool for conservation of hammerhead sharks.
- Life
Ingredients of hagfish slime revealed
Figuring out the ingredients still doesn’t explain how the fishes avoid premature mucus explosions
- Paleontology
Fossilized poop bears tooth marks
Shark-bitten fecal matter probably came from an assault on an ancient croc.
- Humans
Wildlife trade meeting disappoints marine scientists
The 15th meeting of signatories to the CITES treaty ended on March 25 without passing several proposals to protect high-profile fish species.
- Life
Briny deep basin may be home to animals thriving without oxygen
Creatures living deep in the Mediterranean without oxygen would be a remarkable first, biologists say.
- Earth
Studies aim to resolve confusion over mercury risks from fish
Several new papers suggest strategies by which American diners can negotiate a mercury minefield to tap dietary benefits in fish.
- Health & Medicine
Shark cartilage doesn’t appear to help lung cancer
Patients taking an extract show no improvement.
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- Earth
Ancient marine reptiles losing their cool
Warm-bloodedness may help explain the creatures’ evolutionary success, a new study suggests.
- Earth
Moby Dick meets Jaws
A recently discovered fossil demonstrates that giant whales weren’t always as gentle as they are today.
